title: Thermodynamically stable dispersions of quantum dots in a nematic liquid crystal.
abstract: Using transmittance electron microscopy, fluorescence and polarizing optical microscopy, optical spectroscopy, and fluorescent correlation spectroscopy, it was shown that CdSe/ZnS quantum dots coated with a specifically designed surfactant were readily dispersed in nematic liquid crystal (LC) to form stable colloids. The mixture of an alkyl phosphonate and a dendritic surfactant, where the constituent molecules contain promesogenic units, enabled the formation of thermodynamically stable colloids that were stable for at least 1 year. Stable colloids are formed due to minimization of the distortion of the LC ordering around the quantum dots.
authors.affiliation: State Scientific Institution Institute for Single Crystals, NAS of Ukraine, 60, Lenin Ave., Kharkov, 61001, Ukraine.
authors.forename: Maksym F
authors.initials: MF
authors.lastname: Prodanov
authors.forename: Nataliya V
authors.initials: NV
authors.lastname: Pogorelova
authors.forename: Alexander P
authors.initials: AP
authors.lastname: Kryshtal
authors.forename: Andrey S
authors.initials: AS
authors.lastname: Klymchenko
authors.forename: Yves
authors.initials: Y
authors.lastname: Mely
authors.forename: Vladimir P
authors.initials: VP
authors.lastname: Semynozhenko
authors.forename: Alexander I
authors.initials: AI
authors.lastname: Krivoshey
authors.forename: Yurii A
authors.initials: YA
authors.lastname: Reznikov
authors.forename: Sergey N
authors.initials: SN
authors.lastname: Yarmolenko
authors.forename: John W
authors.initials: JW
authors.lastname: Goodby
authors.forename: Valerii V
authors.initials: VV
authors.lastname: Vashchenko
mesh_terms: D001713:Biphenyl Compounds / Q000737:chemistry*; D019187:Cadmium Compounds / Q000737:chemistry; D050866:Liquid Crystals / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry; D013816:Thermodynamics; D017967:Zinc Compounds / Q000737:chemistry
chemical_list: D001713:Biphenyl Compounds; D019187:Cadmium Compounds; D009570:Nitriles; D018036:Selenium Compounds; D013440:Sulfides; D017967:Zinc Compounds; C433919:4-cyano-4'-pentylbiphenyl; C058667:cadmium selenide; C031238:zinc sulfide